Superheater.



" PATENTED JULY 31; 1906;

A. canon. SUPERHBATER. APPLICATION FILED 13.27, 1906.

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PATENTED JULY 31, 1906.

- A. COTTON." SUPERHEATER, APPLIOATION FILED APR. 27', 1906.

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STATES PATENT ALFRED COTTON, OF NEWARK, NEW JERSEY.

4 SUPERHEATEB. I I

To all whom it may concern:

Be it known that I, ALFRED COTTON, asubjeot of the King of Great Britainiresiding at Newarklin thecoiinty of Essen. State of New Jersey; have invented certain new an l$6fi1l Fig.4, a horizontal sectional View of one of i the superheaters; 5; a vertical' sectional View thereof on the'line V "V of Fig. 4, and Fi 6' a horizontal sectional View of asl'ightlyk dierenpfo m ofth'e def/ ice. i

2o ject's the proyision of a simple and eiiecti iie' par us" by w i ste m" m y b perhe'ated beforei-tis discharged into a jet-blow: in'g pp ratus" either for creating a {JO Iced to l";

A further oifieot of the invention is to so constriictthe apparatus that the siiperheater proper may be' readi lyfremoved from the blowers Without p assiinginto tlie superheater.

' 'Thein vention consists thge novel combination and arrangement of parts hereinafter Referring to t f 'e various parts by numerals and letters, ldesi nateS a'jst'eams1 pp ly pipe which connectej to boiler or others oiirce e -ti p ly t -1 d i es gnate St jet p'erheaters are'jarranged tran si erse ly of the "The invention has for one of its many oh;

h Sh uld th tn i becom im r E tive steam may be'supplied directly to 3 1 6 1 an d s r ed, and t tlt ly mi e a 1 Specification of Letters Patent. Application filed April 27, 1906. Seria1No.313,9 7Q- ntt ipip f thence to 'c alnb Heaters are .ari d i rie the ti t t 'mtn is t e r mmed July 311, 190d ten t a se y o he f ace; P efer-t t y the entire idth thereof; said pipe being closed at its outer end. and openingat itsiinner end into's aid chamber Lying ithin his P p a sma open-ende ir u at n? pipe"1,0, isrsubstantialiy the same l h as he P pe 9, nd t m tt eating withth'e cha ber. 4. Connected to the therend of th'e chamber 6 is a heater} I pipe 11; which of'thesanielf ormas pi e 9 w t t i i p s arrange k 'c i atlp P ne w i is sinner 'n n l 10 tipi 1e IZ'commUnicating fatits innerlend. with t e chamber 5. The-coilrse oftiie eteamthipngh h 's perh le i ast u ,,g..s'= It "enters 7 h ough-Pipe 7 an persi ts thr gh Pine 9 1 v 6J- ii i nt 1 into Pi t 1 2, ti {i thei i i ghc ham b t l P 1 W tt m type?- i "The furnac is preferabiy I partments" are 'nlac'd' the pipes "9 and I I 1 low transy'efrseclompaiitments igin tht'hd oi draft ioran draft for aisteam genera- .L Y

the comb ifstionjchainber, and in tiiese com the superheater ftl e said of cient l'engti'ito-,extend' entirely aeroe s I of the furnace, the boXesgbe n ar arrge d boiier flirnac'e-whenever desired, and, filirtiier,

icovered by fireiolayt iles ald a h h tje' zt'poine t e beam f of the jn t'b itw tieffi l i tt grate- 1am t 'so t fil g a c an rh "ater deV c ean incl ned in thefbedoflt a b lta i i nem sa it tqq the ,t'op of Qtiie ifidgQ -Wai; th combustifon-ehmbqr; T

bridge-Wall aria-item the'iied of tiie c0mi$ii- 110 box.

tion-chamber over the superheaters, so that it will not interfere with the proper heating of the steam in said superheaters.

The supply-pipe 1 is connected to the superheater D by pipe 7. Pipe 8 connects the outlet from D to the inlet of C, and pipe 15 connects the outlet from C to the pipe 16, which leads to the et-blower. In pipe 16 is arranged a valve 17, and in the pipe 7 between the supply-pipe and the superheater D is arranged a valve 18, and in said pipe between the superheater O and the pipe 16 is arranged a non-return check-valve 19, by which the return of the steam to the superheater C is prevented. In pipe 15 between the checkvalve 19 and the pipe 16 is arranged acoupling 20. By means of these valves the steam may be passed through the superheaters or around them to'the blower. In the normal operation of this part of the apparatus the valve 17 is closed, so that the steam will pass through the superheaters C and D. Should the superheaters become broken or burned out, the valve 18 is closed and the valve 17 opened. This will cut off the steam through the superheaters and cause it to pass through the pipe 16 to the blower, the check-valve 19 preventing the steam passing back to the superheaters. This valve while actin to automatically prevent steam passing back to the superheater will also act automatically to allow steam which may be generated in the superheater to flow to the blower. It will further be noted that should water accumulate in the superheater C when it is cold it will pass off in steam through the checkvalve when the fire is again started, and there will be no danger of. the superheater being destroyed.

The superheaters A and B are also connected to the supply-pipe and to a blower in a manner similar to the superheater O and D.

In Fig. 6 is shown the box 3*, to which is connected one pipe 9 and one pipe 10*, the outlet-pipe 8 being connected to the chamber 6*. It is obvious that one or more sets of superheating-pipes may be connected to the It is further apparent that the superheating-pipes may be arranged in other posi tions than those shown and that as many of them as may be desired may be employed.

I locate my superheaters in channels in the bed of the passage carrying the hot furnacegases. By this means I can obtain a very large heating-surface indeed, as a great number of such superheaters as described can be located in this way, and consequently the degree of superheat can be made as high as desired. The apparatus is durable, for while being well placed for absorbing heat from the gases flowing over it it is well protected from the direct heat of the gases. Further, the protection is increased with time by the deposition of dust above the channels, while doors are provided for the easy removal of this dust without interrupting the operation of the boiler when the coating of dust becomes thick enough to hinder the transmission of enough heat.

From the foregoing it will be readily seen that I provide a very simple and effective superheater which is not only well adapted for superheating steam, but may be used. for heating air or other gases for any purpose.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-- 1. The combination of a furnace formed with transverse compartments in the bed of the combustion-chamber, superheater-pipes arranged therein and consisting of an inner and outer pipe, a connecting-box connected to a plurality of said pipes and to the steamsupply whereby steam will pass successively through the superheater-pipes, said furnace being provided with cleaning-openings in one of its side walls just above the superheaters, and doors for closing said cleaning-openings.

2. The combination of a furnace formed with a compartment in the bed of the combustion-chamber, a superheater arranged therein and consisting of a series of heaterpipes and circulation-pipes, a connecting-box connecting said pipes whereby steam will pass successively through the heater-pipes and circulation-pipes, a jet-blowing apparatus, a steam-supply pipe connected. to the superheater, means for connecting the super heater to the blowing apparatus, a pipe connecting the supply-pipe to the blowing apparatus independently of the superheater, a valve in said pipe, a valve in the supply-pipe to cut off communication with the superheater, and a check-valve between the superheater and the jet blower.

3. The combination of a furnace formed with transverse compartments in the bed of the combustion-chamber, a superheater arranged in each of said compartments, said superheater comprising a connecting-box formed with an inlet-chamber and an outletchamber and a large circulation-chamber, heater-pipes connected to each end of the circulation-chamber and in communication therewith, said pipes being closed at their free ends, circulation-pipes within the heater pipes and connected to the inlet and outlet chambers, said circulation-pipes extending near to the closed end of the heater-pipes, the connecting-box being arranged outside of the wall of the furnace, cleaning-openings through the wall above the superheater and doors for closing said cleaning-openings.

In testimony whereof I hereunto aflix my signature, in the presence of two witnesses, this 14th day of April, 1906.

ALFRED COTTON. Witnesses:

WM. R. DAVIS, E. I. OAUGI-ILAN. 

